Extensible Z-Source Inverter Architecture: Modular Construction and Analysis

Ding, Xinping; Hao, Yangyang; Li, Kai; Li, Haibin; Wei, Zhengyi; Wu, Weimin

doi:10.1109/tpel.2020.3010020

Cited by 14 publications

(3 citation statements)

References 49 publications

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“…Different indicators are considered to evaluate these converters according to their type and application, including the number of elements, current and voltage stress on the components, the current ripple input and output voltage ripple, the operating range for different duty cycles (D), and so on. In this regard, the most essential feature of ZSI is the amount of increase or decrease in input voltage, because of which different structures have been developed for them [10–39]. By changing the traditional ZSI structure, qZSI [10], improved ZSI (IZSI) [11], inductor ZSI (L‐ZSI) [16], and switched‐inductor‐capacitor ZSI (LC‐ZSI) [32] are provided to fix the conventional Z‐source inverter defects.…”

Section: Introductionmentioning

confidence: 99%

Quasi Z‐source inverter with switched‐capacitor‐inductor for enhancing boost factor

Bolaghi

Taheri

Babaei

et al. 2021

IET Power Electronics

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Two structures are proposed based on the quasi Z‐source inverter (qZSI), which can significantly raise the output voltage in applications, including photovoltaic and fuel cells, in which the input voltage is low. The proposed inverters provide a continuous input current and reduce the voltage stress on capacitor. Besides, the proposed switched‐capacitor‐inductor qZSI (SCL‐qZSI) can suppress inrush current at the start up moment as this current might damage the devices. The performance of the proposed structures is investigated at different operating modes, and the voltage equations are calculated. The voltage stress on switches, the voltage stress on capacitors, the voltage stress on diodes, and the current stress on inductor, as well as the average DC‐link current, the gain voltage (G), and the boost factor (B) of the proposed inverters, are analysed and derived. They are then compared with similar converters. To confirm the performance of the proposed converters, a laboratory sample of converters is made, which with output voltages, capacitors voltages, input and output current for the proposed converters. The DC‐link (Vi) voltage is 95 with boost factor 1.6 for SCL‐qZSI, and the DC‐link voltage is 216 with boost factor 3.6 for the enhance switched‐capacitor‐inductor qZSI (ESCL‐qZSI), which confirms the relationships obtained from the proposed converters. Also, the abbreviation for this paper is shown in table 1.

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Section: Introductionmentioning

confidence: 99%

Quasi Z‐source inverter with switched‐capacitor‐inductor for enhancing boost factor

Bolaghi

Taheri

Babaei

et al. 2021

IET Power Electronics

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show abstract

“…EZSI can be constructed with modularity using low voltage components to construct a high power single stage inverter. Experimental verification are carried out for 1 kW prototype to validate the theoretical analysis [42].…”

Section: Introductionmentioning

confidence: 99%

Review of impedance source power converter for electrical applications

Saravanan

Venkatachalam

Borelessa

et al. 2021

IJAAS

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<p>Power electronic converters have been actively researched and developed over the past decades. There is a growing need for new solutions and topography to increase the reliability and efficiency of alternatives with lower cost, size and weight. Resistor source converter is one of the most important power electronic converters that can be used for AC-DC, AC-AC, DC-DC and DC-DC converters which can be used for various applications such as photovoltaic systems, wind power systems, electricity. Vehicles and fuel cell applications. This article provides a comprehensive overview of Z-source converters and their implementation with new configurations with advanced features, emerging control strategies and applications.</p>

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“…Nowadays, impedance-source inverters have been considered as a solution to deal with the drawbacks of conventional inverters [6][7][8]. By using some passive components such as diodes, capacitors, and inductors in Z-source (ZS) circuit, the ZS inverter (ZSI) can behave as a buck-boost inverter with ST immunity.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Boost Factor for Three-Level Quasi-Switched Boost T-Type Inverter

Tran

Nguyen

2021

Energies

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A new modulation strategy has been introduced in this paper in order to enhance the boost factor for the three-level quasi-switched boost T-type inverter (3L-qSBT2I). Under this approach, the component rating of power devices is significantly decreased. Moreover, the use of a larger boost factor produces a smaller shoot-through current. This benefit leads to reducing the conduction loss significantly. Furthermore, the neutral voltage unbalance is also considered. The duty cycle of two active switches of a quasi-switched boost (qSB) network is redetermined based on actual capacitor voltages to recovery balance condition. Noted that the boost factor will not be affected by the proposed capacitor voltage balance strategy. The proposed method is taken into account to be compared with other previous studies. The operation principle and overall control strategy for this configuration are also detailed. The simulation and experiment are implemented with the help of PSIM software and laboratory prototype to demonstrate the accuracy of this strategy.

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Extensible Z-Source Inverter Architecture: Modular Construction and Analysis

Cited by 14 publications

References 49 publications

Quasi Z‐source inverter with switched‐capacitor‐inductor for enhancing boost factor

Quasi Z‐source inverter with switched‐capacitor‐inductor for enhancing boost factor

Review of impedance source power converter for electrical applications

Enhanced Boost Factor for Three-Level Quasi-Switched Boost T-Type Inverter

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